This chimerical bridge/tunnel appears to dead end right into the sea.

Swedish skyscraper with a 90° twist.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

A plaque bearing the names of those who dedicated themselves to protecting Budapest's Jewish population during World War II.

Hungarian Jews were ghettoized during the Second World War, but little remains of the original wall that closed the Jewish people off from the rest of the city.

This building has survived for more than a century and remains virtually untouched.

From cartoon characters to tiny tanks, a guerilla sculptor's little bronze statues are hidden throughout the city of Budapest.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

A Jenga-style cylindrical tower of books that appears to go on forever.

This spooky statue sits outside a famous Prague theater.

From Iggy Pop to David Bowie to Nick Cave, this regal music studio has served some of the all time greats.

A museum specifically dedicated to the Trabant, one of the iconic automobiles of the GDR.

Moscow's imposing monument to the Space Age.

Museum celebrating the achievements of the Soviet space program.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

Moscow's other, lesser known kremlin is a fairytale-like cultural complex modeled after Old Russia.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

This lucky bronze frog was gifted to Madrid by a casino.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

This historic toy museum brings a little whimsy to a city not usually remembered for such things.

A monument to the "father of modern warfare" Gustav II Adolf.